Global keys to minimize/close running clients (like games) in Arch?

I'm on Arch x64 with awesome window manager stand-alone.How can I set a global hotkey, so that, for example, when I'm playing a game, I could minimize/close it?The keys for Awesome will get disabled when I'm in a game or something... so how can I implement that?

from what I can tell the app takes control of all keys when full screen especially games(not to be confused with maximized/windowed). apps like firfox, mplayer, etc. fullscreen are different thy comply with the wm's controls as long as they do not conflict with there own. as for keys that do things like you say is entirely dependent on the app; even with windows with the alt+tab or windowkey+tab was a consencess with developers.

This is indeed one of the most annoying things on the Linux desktop: Not being able to "alt+tab" out of fullscreen games. I recommend running them in a seperate X session, so you can at least Ctrl+Alt+F? away from the game.